Sulfonamides or Sulfa Drugs as Antimetabolites: The sulfonamides are synthetic antimicrobial agents with a wide spectrum encompassing most gram-positive and many gram-negative organisms. These drugs were the first efficient treatment to be employed systematically for the prevention and cure of bacterial infections.
Mauricio Funes. Carlos Mauricio Funes Cartagena (born 18 October 1959) is a Salvadoran politician who was President of El Salvador from 1 June 2009 to 1 June 2014. He won the 2009 presidential election as the candidate of the left-wing Farabundo MartÃ­ National Liberation Front (FMLN) political party and took office on 1 June 2009.
Maurits Cornelis Escher (1898-1972) is a graphic artist known for his art tessellations. His art is enjoyed by millions of people all over the world. He created visual riddles, playing with the pictorially logical and the visually impossible.